Inspector Chapter 13 Flashcards

(67 cards)

1
Q

When fires occur, the most effective way to protect occupants is to _____

A

Extinguish the fire in its incipient stage.

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2
Q

For a special-agent extinguishing system to be considered successful, it must:

A

Completely extinguish the fire

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3
Q

A _____-_____ extinguishing system is used wherever rapid fire extinguishment is required an where reignition of the burning material is unlikely

A

Dry-Chemical

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4
Q

The Two application methods for dry-chemical extinguishing systems are:

A

Fixed System and Handheld Hoseline

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5
Q

Which type of Dry-Chemical Systems fixed systems is most common?

A

Local Application

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6
Q

_____-_____ agents are used in situations where water would be ineffective or reactive with the burning materials

A

Dry-Chemical

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7
Q

Dry-Chemical Extinguishing Agent: Also known as ordinary dry chemical and is effective on Class B and Class C fires.

A

Sodium Bicarbonate

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8
Q

Dry-Chemical Extinguishing Agent: What agent is twice as effective as carbon dioxide for Class B Fires?

A

Sodium Bicarbonate

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9
Q

Dry-Chemical Extinguishing Agent: Also known as purple-k, has properties and applications similar to Sodium Bicarbonate

A

Potassium Bicarbonate.

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10
Q

Dry-Chemical Extinguishing Agent: This agent can extinguish a fire twice the size of Sodium Bicarbonate

A

Potassium Bicarbonate

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11
Q

Dry-Chemical Extinguishing Agent: Also known as multipurpose dry-chem (pale yellow in color), and is effective on class A, B, And C Fires.

A

Monoammonium Phosphate

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12
Q

Inert gas that is compressed and used to force extinguishing agents from a portable fire extinguisher; nitrogen is a commonly used one.

A

Expellant Gas

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13
Q

Dry-Chem Extinguisher Storage Container range from:
Some hold as much as:

A

30-100 pounds.
2,000 poounds.

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14
Q

Dry-Chem Extinguishers must be located in an area that maintains of temperature range of:

A

-40F - 120F

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15
Q

Extinguishing agents for combustible metals, also known as _____ _____, are designed to extinguish Class D fires.

A

Dry Powders

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16
Q

Dry Powder: Sodium Carbonate-based agent with additives to enhance its flow; Designed specifically for use on sodium, potassium, and sodium-potassium alloy fires.

A

NA-X

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17
Q

Dry Powder: Not suitable for use on magnesium fires

A

NA-X

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18
Q

Dry Powder: The agent forms an encasing crust or cake on the burning material, which causes and oxygen deficiency

A

NA-X, MET-L-X

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19
Q

Dry Powder: Listed under UL for use on burning materials at fuel temperatures up to:

A

1,400F

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20
Q

Dry Powder: Sodium Chloride based agent intended for use on magnesium, sodium, and potassium fires.

A

MET-L-X

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21
Q

Dry Powder: Applied initially to control the fire, then more slowly to bury the fuel in a layer of the powder

A

MET-L-X

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22
Q

Dry Powder: Graphite-based agent that extinguishes fires by conducting heat away from the fuel after a layer of the powder has been applied to the fuel.

A

LITH-X

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23
Q

A _____-_____ system is most effective on fires in commercial cooking equipment that produce grease-laden vapors.

A

Wet-Chemical

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24
Q

_____ agents are in a general category of fire extinguishing agents that effectively leave no residue.

A

Clean Agents

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25
_____ agents are effective on Class A, B, and C fires and will not conduct electricity.
Clean Agents
26
One of the first groups of clean agents developed. Effective on Class B and C Fires
Halon Agents
27
Halon _____ is most commonly found in portable fire extinguishers.
1211
28
Halon _____ is most commonly found in fixed total flooding systems.
1301
29
Halocarbon agent that becomes a rapidly evaporating liquid when discharged
Halotron
30
Halocarbon agent that leaves no residue and is not harmful to humans or the environment
FM-200
31
Blend of three naturally occurring gases: nitrogen, argon, and carbon dioxide.
Inergen
32
Hydrofluorocarbon-based agent that is nonconductive, noncorrosive, residue free, and has zero ozone-depletion potential, and is environmentally preferred to halon.
ECARO-25
33
Develped by DuPont to replace both Halon 1301 and 1211. Consists of hydrofluorocarbon HFC-236fa
FE-36
34
CO2 is extremely cold, approaching:
-110F
35
Total flooding systems are designed to deliver at least _____ concentration of CO2
CO2
36
In a high pressure CO2 system, Co2 is stored at a pressure of:
850 PSI
37
Foam System: Complete installation that is piped from a central foam station; automatically discharges foam through fixed delivery outlets to the protected hazrd.
Fixed
38
Foam System: Foam discharge piping is in place but not attached to a permanent source of foam; requires a separate mobile foam-solution source
Semifixed
39
Foam system: A wheel-mounted, foam fire extinguishing system
Mobile
40
Foam System: Hand-transported foam-producing equipment, such as hose, nozzle, proportioner, and other materials
Portable
41
Mixing of water with an appropriate amount of foam concentrate
Proportioning
42
Finish foam is ____ to ____ water
94-99 1/2 percent
43
Foam designed for hydrocarbon fires are used at what percent?
1-6%
44
Polar solvent fuels require what percent foam?
3-6%
45
Medium and high-expansion foams are typically used at what percents?
1, 1 1/2, 2, 3%
46
Foam Expansion Rates: Low
7:1 - 20:1
47
Foam Expansion rates: Medium
20:1 - 200:1
48
Foam Expansion Rates: High
200:1 - 1,000:1
49
Extinguishers weighing less than 40 pounds should be installed so that the top of the extinguisher is not more than _____ above the floor.
5 Feet
50
Extinguishers with a gross weight greater than 40 pounds should be installed so that the top of the extinguisher is not more than _____ aove the floor.
3 1/2 feet
51
Clearance between the bottom of the extinguisher and the floor should never be less than _____
4 inches
52
Water-based extinguishers are tested in laboratories in temperatures between _____
40-120F
53
Non Water-Based extinguishers can be installed where the temperature is as low as:
-40F
54
Specialized extinguishers are available for temperatures as low as:
-65F
55
Dry-chem agent storage containers that are less than 150 pounds should be hydrostatically tested every _____
12 years
56
For Clean-agent systems, inspection by qualified personnel is required:
Annually
57
Clean-Agent storage containers must be hydrostatically tested every _____
5 years.
58
Hoses used for local application of Clean-Agents should be pressure tested:
Every Year
59
_____-hazard occupancy - One in which the amount of ordinary combustible material or flammable liquids present in such that an incipient fire of small size may be expected.
Light-Hazard
60
_____-hazard occupancy - One in which the amount of ordinary combustibles and flammable liquids present would likely result in an incipient fire of moderate size.
Ordinary-Hazard Occupancy
61
_____-Hazard occupancy
One in which the amount of ordinary combustible materials and flammable liquids present are high and a rapidly spreading fire may develop.
62
Class A Hazards maximum travel distance for extinguisher location is
75 Feet
63
Travel distance to the hazard is the most important factor in determining the distribution of class _ extinguishers.
Class B
64
Flammable liquids are said to have depth at:
1/4 of an inch
65
NFPA recommends the travel distance for class D extinguishers not exceed
75 Feet
66
In areas where Class K fires are likely, the maximum travel distance from the hazard to the extinguisher is reduced to:
30 Feet
67
NFPA 10 reocmmends _____ extinguisher inspections.
Monthly